. A text-book of bacteriology, including the etiology and prevention of infective diseases and a short account of yeasts, and moulds, haematazoa, and psorosperms. Bacteriology. 156 BACTERIOLOGY. all the purposes for which the apparatus may be required, inchidiug the employment of the highest powers, and also that one may be enabled to work for long intervals of time with due comfort, an accurate and complete apparatus will be found to be most desirable. Though most preparations will admit of being photographed when the stage of the microscope is vertical, yet if we require to photograph micro-
. A text-book of bacteriology, including the etiology and prevention of infective diseases and a short account of yeasts, and moulds, haematazoa, and psorosperms. Bacteriology. 156 BACTERIOLOGY. all the purposes for which the apparatus may be required, inchidiug the employment of the highest powers, and also that one may be enabled to work for long intervals of time with due comfort, an accurate and complete apparatus will be found to be most desirable. Though most preparations will admit of being photographed when the stage of the microscope is vertical, yet if we require to photograph micro-organisms in liquids, or colonies upon partially liquefied gelatine, the apparatus must admit of being placed so that the stage of the microscope becomes horizontal. In addition, the apparatus is rendered somewhat complex if we employ powerful I. Fig. 77.—Hohizoxtal Micko-photogkaphic Appaeatus. artificial light. Sunlight, no doubt, is the best and cheapest, but it is not always available, especially in a city like London; and, moreover, evenings and dull days will probably be the very time which can be best spared for this work. We must, therefore, fall back upon the paraffine lamp, or the magnesium, oxyhydrogen, or electric light. To fulfil all these conditions Swift has constructed an apparatus under the author's directions (Fig. 78). It is merely a modification of the ordinary horizontal model, which admits of being readily placed. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Crookshank, Edgar M. (Edgar March), 1858-1928. Philadelphia, W. B. Saunders
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphila, bookyear1897
